Home / 28,194.34-38,905.05-15,615.94

Finding the Fourth Proportional to 28,194.34, 38,905.05 and 15,615.94

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Solution

The fourth proportional to 28,194.34, 38,905.05 and 15,615.94 is: 21,548.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.34 : 38,905.05 = 15,615.94 : x
  2. Step 2: Convert to fraction form
    28,194.34/38,905.05 = 15,615.94/x
  3. Step 3: Cross multiply
    28,194.34x = 38,905.05 × 15,615.94
  4. Step 4: Simplify right side
    28,194.34x = 607,538,926.50
  5. Step 5: Solve for x
    x = 607,538,926.50/28,194.34
  6. Step 6: Final answer
    x = 21,548.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.